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Head-to-head Updated

Dunlop Grandtrek AT20 vs Dunlop Sport Maxx RT 2 SUV — Compared

Relative Score (0–100): 60% professional tests, 40% owner reviews.

Sport Maxx RT 2 SUV is ahead, 65–46

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Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 43

    Dry

    Sport Maxx RT 2 SUV +28
    71
    Why this score
    SourceGrandtrek AT20Sport Maxx RT 2 SUV
    Professional tests (TWG score)–73
    Reviews found online2968
  2. 43

    Wet

    Sport Maxx RT 2 SUV +28
    71
    Why this score
    SourceGrandtrek AT20Sport Maxx RT 2 SUV
    Professional tests (TWG score)–75
    Reviews found online3364
  3. 49

    Snow

    No comparison
    –
    Why this score
    SourceGrandtrek AT20Sport Maxx RT 2 SUV
    Reviews found online36–
  4. 52

    Comfort

    Sport Maxx RT 2 SUV +15
    67
    Why this score
    SourceGrandtrek AT20Sport Maxx RT 2 SUV
    Reviews found online3466
  5. 57

    Noise

    Sport Maxx RT 2 SUV +11
    68
    Why this score
    SourceGrandtrek AT20Sport Maxx RT 2 SUV
    Professional tests (TWG score)–70
    Reviews found online42–
  6. 52

    Treadwear

    Grandtrek AT20 +1
    51
    Why this score
    SourceGrandtrek AT20Sport Maxx RT 2 SUV
    Reviews found online4242
  7. 34

    Handling

    Sport Maxx RT 2 SUV +35
    69
    Why this score
    SourceGrandtrek AT20Sport Maxx RT 2 SUV
    Reviews found online3469
Scores at a glance
CategoryDunlop Grandtrek AT20Dunlop Sport Maxx RT 2 SUV
Relative Score 46 65
Dry 43 71
Wet 43 71
Snow 49 –
Comfort 52 67
Noise 57 68
Treadwear 52 51
Handling 34 69

Higher is better. The Relative Score follows your weights below; category scores do not change.

Weight the categories that matter to you

Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.

Important
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Important
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Neutral
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Neither tire has a score here yet, so this weight changes nothing.

Less important
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Less important
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Important
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Neutral
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Recomputed
Headline score

Grandtrek AT20

Sport Maxx RT 2 SUV

Only categories both tires have data for count toward the headline score.

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Grandtrek AT20

Pros

  • Exceptional tread life and high mileage capability (often exceeding 40,000 to 60,000+ miles)
  • Comfortable, smooth, and quiet ride on tarmac and highways
  • Good stability and predictable handling in dry, warm weather conditions

Cons

  • Extremely poor and potentially unsafe traction on wet roads, leading to sliding and long braking distances
  • Unreliable or hazardous performance in winter conditions like snow and ice
  • Subpar off-road capabilities, including low puncture resistance on gravel and poor traction in mud or sand
All owner themes in the Grandtrek AT20 review

Tire B Sport Maxx RT 2 SUV

Pros

  • Exceptional grip and confidence-inspiring handling in both wet and dry conditions
  • Significantly lower road noise and quieter ride compared to predecessor or competing brands
  • Good tread wear longevity and durability, offering strong value for money

Cons

  • Potential for tire deformation and subsequent vibrations after periods of non-use or normal driving
  • Stiff or taut ride quality reported by some users
  • Limited effectiveness on ice and snow compared to dedicated all-season tyres
All owner themes in the Sport Maxx RT 2 SUV review

Specs side by side

Attribute A · Dunlop Grandtrek AT20 B · Dunlop Sport Maxx RT 2 SUV
CategoryAll SeasonSummer
Vehicle typeSUV and 4x4SUV and 4x4
Sizes available925
Rim diameters15″ – 18″17″ – 21″
SidewallBlackwall—

Which one should you actually buy?

Dunlop Grandtrek AT20

Dunlop Sport Maxx RT 2 SUV

Winner: Dunlop Sport Maxx RT 2 SUV — better handling, dry and wet. It leads or ties in every category we score.

Pick tire B You enjoy sharp, responsive handling

Dunlop Sport Maxx RT 2 SUV scores 69 vs 34 on handling.

Pick tire B You want the most grip on dry roads

Dunlop Sport Maxx RT 2 SUV scores 71 vs 43 on dry.

Pick tire B Your priority is wet-weather safety

Dunlop Sport Maxx RT 2 SUV scores 71 vs 43 on wet.

Pick tire B You want the most comfortable ride

Dunlop Sport Maxx RT 2 SUV scores 67 vs 52 on comfort.

Tire A · Dunlop Grandtrek AT20
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Tire B · Dunlop Sport Maxx RT 2 SUV
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How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.

Community buzz from Reddit and forums is shown for context only — it never changes the score.

65

Leads

Sport Maxx RT 2 SUV

Amazon